COMPARATIVE ANALYSIS OF PRE-ENGINEERED BUILDINGS WITH VARIOUS ROOF SHAPES FOLLOWING IS 800:2007 AND AISC 360-16 STANDARDS

Abstract

Steel's advantages—such as malleability, reusability, and fire resistance—have driven its increasing preference over RCC. Pre-engineered buildings (PEBs) leverage these benefits with advanced, high-tech construction methods. These buildings use pre-designed and prefabricated steel components that are manufactured off-site and assembled on-site, ensuring high quality control, efficiency, and rapid construction. Structural members in PEBs are optimized to minimize excess steel by tapering sections according to bending moment requirements, thanks to sophisticated computer-aided design and manufacturing techniques. Despite the growing use of PEBs, there is limited research on their effectiveness for various roof shapes and span sizes compared to conventional steel buildings. This study addresses this gap by comparing PEB systems with truss arrangements to identify the most cost-effective configuration. The research focuses on three roof shapes—dual slope, curved slope, and mono slope—with a plan dimension of 15x30m for industrial buildings. In the study, a warehouse frame was designed using both IS 800:2007 and AISC 360-16, with similar loading parameters applied according to Indian codes. STAAD.Pro Connect Edition was used for 3D modelling, and the study adhered to Indian standards (IS 800, IS 875, IS 1893) for load application. The study provides a detailed comparative analysis of design results, deformations, and material take-offs. It also compares IS 800 with AISC 360-16, noting that over 70% of PEBs adhere to AISC 360-16, highlighting its industry dominance. The analysis aims to uncover variations in tonnage and understand the reasons for these differences, offering insights into the effectiveness of PEB systems across different roof shapes and sizes.